Car-axle



(No Model.)

W. s. EBERMAN.

GAR AXLE.

No. 232,507. Patented Aug. 7, 1883.

WITNESSES V W 8 v l u. PETERS. mwwosnw Withinitm n. c

UNInED STATES PATENT OF ICE. 7

YVILLIAM S. EBERMAN, OF SANDY LAKE, PENNSYLVANIA.

CAR-AXLE.

SPECIFICATION forming part of Letters Patent No. 282,507, dated August 7, 1883.

Application filed May 19, 1863. (No model.)

To all whom it may concern: Be it known thatI, WILLIAM S. EBERMAN, of Sandy Lake, in the county of Mercer and State of Pennsylvania, have invented certain 4 5 new and useful Improvements in Railroad-Oar =Axles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains' to make and use the same.

My invention relates to an improvement in railroad-car axles, the object of the same being to provide means whereby one wheel is enabled to turn independently of the. other; and with this end in view my invention consists in the parts and combinations of parts, as will be more fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is aview in elevation of my improved axle. Fig. 2 is a longitudinal View of the same, and Fig. 3 is a view showing the parts detached.

This axle is composed of the sections A and A; of same or unequal lengths, the outer ends be rigidly secured within the wheel-hubs. The inner end of the section A is screw-threaded, and is adapted to register with the femalescrewthreaded end a of the coupling or casing B, into which latter it is screwed asufficient distance, and locked therein by suitable keys. The inner end of the section A, which is introduced into the opposite end of the casing or coupling B, is provided with the annular shoulder b, which latterbears against the outer end of the screw-threaded sleeve 0. This end of the section A is considerablyreduced in size and fits snugly within the sleeve 0, and the extreme end thereof, which is smaller than the portion of the axle within the sleeve, is adapted to receive the collar D, which latter is considerably larger than the bore of the sleeve 0. After the reduced end of the sectionA of the axle has been passedinto the sleeve 0 the collar D is placed of which are reduced in size and adapted to on the projecting endthereof and secured therei in it. This sleeve is externally screw-threaded, and is adapted to be secured in the casing or coupling similar to the section A of the axle, with the end of the sectionA abutting against the inner end of the section A. When the parts are thus secured togetheiythe section A, with its attached wheel, is free to move'in the sleeve 0 independently of the section A, and the section A,with the coupling B and sleeve 0, is free to move independently of the section A.

This axle can be lengthened to compensate for the wearing of the flange by putting between the adjacent ends of the sections of the axle a washer of any kind or material which will be sufficient to separate the adjacent ends the desired distance.

This construction of parts firmly unites the twosections of the'axle and prevents them from displacement, but leaves the wheels free to move independently of each other, and consequently 7o enables one turn ata greater rate of speed than the other while turning curves.'

This device is simple in constructiomdurable in use, and can be manufactured at a small initial cost.

It is evident that slight changes in the construction and relative arrangement of the several parts might be resorted to without departing from the spirit of my invention, and hence I would have it understood that I do not limit" myself to the exact construction shown and described, but consider myself at liberty to make such changes and alterations as fairly fall with- .in the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1.' The combination, with a female screwthreaded coupling and a screw-threaded sleeve securedwithin the coupling, of a divided axle, one section of which is screw-threaded to rigidly engage the coupling,while the other section is loosely secured within the sleeve, substantially as set forth. i

2. The combination, with a female screwthreaded coupling anda screw-threaded sleeve rigidly secured within the coupling, of a divided axle, one section of which is screw-threaded and registers with one end of the coupling, while the opposite section is reduced in size 100 and secured within the sleeve by a collar se- In testimony whereofI have signed this specicured to the extreme inner end' of the said secfication in thepresence of two-subscribing Wit- 10 tion of axle, substantially as set forth. nesses.

3. The combination, with the coupling B, T 5 sleeve 0, and section A of the axle, of the sec- WILLIAM EBERMAL tion A, provided with the shoulder b, and the Witnesses: collar D, secured to the extremeinner end 01 E. G. EBERMAN,

the said section A, substantially as set forth. J. H. HENRY. 

